Window-screen



(No Model.)

W. G. ANDERSON.

WINDOW SCREEN.

Patented Sept. 11,1883.

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UN D STATES PATENT OFFIC WILLIAM G. ANDERSON, onBoSTon, MASSACHUSETTS.

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 284,588, datedSeptember 11, 1883.

Application filed December 28, 1882. {No model) To all whom it mayconcern Be it known that I, WILLIAM G. ANDER- soN, a citizen of theUnited States of America, residing at Boston, in the county of Suffolkand State of Massachusetts, have invented certain new and usefulImprovements in Window- Screens 5 and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and toletters or figures of reference marked thereon, which form a part ofthis specification, and in which K Figure 1 is a front elevation of thewindowscreen frame, part in section, showing the adjustable spring end,arrangement of springs, &c. Fig. 2 is an end view.

My invention has for its object to provide a window-screen with anautomatically-adjustable spring end, by means of which the screen can bemade to fit windows of various sizes, and which will be very strong anddurable.

The combination and arrangement of the various parts I will now proceedto describe.

Referring to the drawings, A is the frame of the window-screen, coveredwith anysuitable net-work. B is the adjustable spring end. 0 is arectangular groove on the vertical edge A of the frame, in whichrectangular groove the tongue D of the spring end B enters. E E

are metal tubes, having one end closed and secured to the spring end B,the other end projecting beyond the tongue D and entering holes F F inthe frame A. G G are coiledsprings placed within the tubes E E, whichsprings, operating against the ends of the holes FF, force the springend B outfrom the frame A. H H are screws or pins having the heads h h,which screws or pins pass through the holes I I in the spring end B, andare secured to the bottom of the rectangular Slot 0. 1' z are shouldersin the holes I I, which shoulders engage with the heads of the screws orpins H H and limit the outward movement of the spring end B. K K aregrooves which engage with guides on the window-frame.

I am aware that patents have beengranted for window-screens havingadjustable spring ends actuated by coiled springs, and I do not claim abroad patent on the same; but

What I do claim as new, and desire to secure by Letters Patent, is-

The combination of the frame A, rectangular groove 0, spring end B,having the tongue D, tubes E, springs G, holes F, and screws or

